Problem
This troubleshooting article applies only to post 2020 machines
If the machine is not operating and the” information light” at the rear status panel of the machine and the firmware LED on the logic board flashes with the following eight-bit pattern as described here:
0000 0010
Where 0 indicates a short pulse which is 1/4 second and 1 indicates a long pulse which is 1 second long.
Solution
The following items provide step by step instructions on how to break down the cause of the issue:
Make sure the pendant is plugged in when the machine is booting up
If the pendant was not unplugged subsequently, there is a hardware issue:
Pendant, Pendant Cable or Pendant Board are defective
Logic Board is defective
plugging in the pendant while the machine is powered up (hot-plugging) is not supported!
Make sure to turn of the machine before plugging in the pendant